Abstraction,Design, and Theory in Computer Science: A Liberal Arts Course

The primary thesis of this article is that undergraduates of any major can understand the important theories of computer science (CS) and the relevance of computing technology. We propose that by conceptualizing CS service courses as liberal education classes that emphasize such topics, we can move students from a state of technological ignorance and fear to one of understanding and appreciation of technology. Here, we provide an instance of such a course. A detailed explanation of the course and student and instructor evaluations are described and discussed.     

The effects of carbohydrate supplementation on immune responses to a soccer-specific exercise protocol

The aim of this study was to determine the effect of carbohydrate (CHO) versus placebo (PLA) beverage consumption on the immune and plasma cortisol responses to a soccer-specific exercise protocol in 8 university team soccer players. In a randomized, counterbalanced design, the players received carbohydrate or placebo beverages before, during and after two 90min soccer-specific exercise bouts (3 days apart) designed to mimic the activities performed and the distance covered in a typical soccer match. Blood and saliva samples were collected before, during and after the exercise protocol. Plasma lactate concentration increased to ~4 mmol.l-1 at 45 and 90 min of exercise in both treatments (P? 0.01). Plasma glucose concentration was significantly lower after 90 min of exercise with ingestion of the placebo than the carbohydrate (PLA: 4.57 +/- 0.12 mmol.l-1; CHO: 5.49 +/- 0.11 mmol.l-1; P? 0.01). The pattern of change in plasma cortisol, circulating lymphocyte count and saliva immunoglobulin A secretion did not differ between the carbohydrate and placebo trials. Blood neutrophil counts were 14% higher 1 h after the placebo trial than the carbohydrate trial (PLA: 4.8 =/- 0.5 x 10 9 cells.l-1; CHO:4.2 +/- 0.5 x 10 9 cells.l-1; P=0.06),but the treatment had no effect on the degranulation response of blood neutrophils stimulated by bacterial lipopolysaccharide. We conclude that, although previous studies have shown that carbohydrate feeding is effective in attenuating immune responses to prolonged continuous strenuous exercise, the same cannot be said for a soccer-specific intermittent exercise protocol. When overall exercise intensity is moderate,and changes in plasma glucose, cortisol and immune variables are relatively small, it would appear that carbohydrate ingestion has only a minimal influence on the immune response to exercise.     

The Influence of Hydration on Anaerobic Performance

This review examines the influence of dehydration on muscular strength and endurance and on single and repeated anaerobic sprint bouts. Describing hydration effects on anaerobic performance is difficult because various exercise modes are dominated by anaerobic energy pathways, but still contain inherent physiological differences. The critical level of water deficit (～ 3–4%; mode dependent) affecting anaerobic performance is larger than the deficit (～ 2%) impairing endurance performance. A critical performance-duration component (> 30 s) may also exist. Moderate dehydration (> 3% body weight; precise threshold depends on work/recovery ratio) impairs repeated anaerobic bouts, which place an increased demand on aerobic metabolism. Interactions between dehydration level, dehydration mode, testing mode, performance duration, and work/recovery ratio during repeated bouts make the dehydration thresh-old influencing anaerobic performance mode dependent.     

Relational tensions,narrative, and materiality: intergenerational communication in families with undocumented immigrant parents

ABSTRACT

This research explores the competing discourses and relational tensions that emerge in intergenerational communication in immigrant families with undocumented parents through in-depth interviews with undocumented Latino/a parents and their children living in New York City. Through the articulation of three themes, we illustrate how material realities affiliated with a lack of legal status incite unique discursive tensions in family relationships that manifest in family narratives. This study lends scholarly insight into the ways undocumented immigrants and their families communicatively navigate their uncertain life terrain through conversation about immigration status, conflicting career dreams, and hybrid cultural values. Using these findings as guidance, we offer practical applications related to communal coping and family advocacy for professionals and volunteers working in immigrant-serving community organizations.     

‘I would just like to run away and hide,but I won't!’ Exploring Attitudes and Perceptions on Child Protection Issues with Early Years Teacher Trainees on the Threshold of Their Careers

Abstract

This research sets out to examine the perceptions and attitudes of a cohort of early years specialist teacher trainees with regard to child protection issues as they prepare to enter the teaching profession. The trainees were at the end of a three‐year Primary Initial Teacher Training Course in the north of England. We had set out within the course to present a paradigm to the trainees of the newly qualified early years teacher as not only an effective agent in preventing child abuse but also the ‘advocates for the structural changes in society which would aim to eradicate child abuse’ (David, 1993, p. 84). We were particularly concerned with exploring whether our course had gone beyond the mechanistic and legal framework of the Standards [1] [1] The Standards referred to throughout this article are the Standards for the Award of Qualified Teacher Status—Annex A of Department of Education and Employment Circular 4/98 (DfEE, 1998). to produce reflective and effective early years practitioners able both to discuss their feelings and perceptions of child protection issues and to articulate their concerns (Braun & Schonveld, 1994, p. 92). The research found that the trainees feel anxious both about making decisions on issues concerning child abuse and working with members of families who could be abusers. Furthermore, they were extremely anxious concerning the whole area of inter‐agency working in the early years. Nevertheless they have developed strong and sophisticated levels of thinking in this area and are universal in their willingness to become advocates for the young child with regard to child protection issues. They hold firmly onto their ideological aspirations of the young child as the centre of the classroom and are willing to encompass the role of the teacher/social worker.

     

Gender politics in 21st century literacy reform

From 2001 to 2004 Education Queensland undertook significant literacy reform in schools through the Literate Futures Project. Research into the impact of this reform has revealed that significant demands were placed on women at all levels, from those producing resources to those leading change within schools. Although the reform was a government response to globalisation, many women were driven by a commitment to a collaborative approach to professional learning that addressed equity and improving educational outcomes for all students. But what was the cost of this commitment to the project? Failure to acknowledge the emotion work demanded by educational reform effectively silences women and the significant contribution they make. This paper examining a 21st century literacy reform draws on the work of Fraser and Boler to argue for gender justice and acknowledgement of emotion work.     

FACULTY ATTITUDES TOWARD THE MIXED‐AGE COLLEGE CLASSROOM

With the number of nontraditional students on college campuses continuing to increase, college educators need to become aware of issues regarding the mixed‐age classroom. Part of this awareness should be an understanding of how faculty perceive different‐aged students and their mixed‐age classroom experiences. Through telephone interviews with approximately 100 faculty, we investigate attitudes about the professor‐student relationship, views toward teaching in a mixed‐age classroom, and beliefs about both older and younger students.